Media Assets and Specs

Technical specifications for poster, gallery images, trailer, and other media on your BlockReel Fund campaign page.

Media Assets and Specs

Specifications and best practices for every visual asset on your campaign page.

A great pitch can be undermined by media that loads slowly, looks bad on mobile, or fails to share well on social. This guide covers exact specs and the reasoning behind them.

Jump To

1. The poster image 2. Gallery images 3. The pitch video 4. Trailer (optional) 5. Reward tier images 6. Team headshots 7. Press kit 8. Update feed media 9. Open Graph and shareable previews 10. Optimization workflow

The poster image

This is the single most important visual on your campaign page. It appears:

Specs:

Design principles:

Pay for a designer if you can. A $300-1,000 poster from a real graphic designer outperforms a self-made poster by significant margins.

Gallery images

Up to 10 supporting images appear in a scrollable gallery below the video. Use them to show:

Specs:

10 images is plenty. 6-8 is often better. Quantity above quality is never the answer.

The pitch video

Covered in depth in Building Your Pitch Video. Media specs only here:

Trailer (optional)

Distinct from the pitch video. The trailer is a 30-90 second cut of actual footage from the film (or a proof of concept). It lives in a separate slot on the campaign page below the pitch video.

A trailer is optional but adds significant trust. If you have shot anything that can be cut into a trailer, do it. If you have not, skip the slot rather than fake one.

Specs match the pitch video.

Reward tier images

Each reward tier can include an optional image. Recommended for:

Specs:

Team headshots

Each team member's profile picture is pulled from their BlockReel avatar. If the avatar is generic or low-quality, encourage them to upload a better one in their profile settings.

For external collaborators, you can upload a headshot directly in the team section of the builder. Specs:

Press kit

A press kit URL is an optional field. It should link to an external resource (Google Drive folder, Dropbox, dedicated press page) containing:

A press kit dramatically increases the likelihood of coverage. Journalists who have to ask for assets often skip the story.

Update feed media

Updates posted to the updates feed support inline images and embedded video. Use them to:

Specs: Same as gallery images for stills. Same as pitch video for inline video.

Open Graph and shareable previews

When your campaign URL is shared on social platforms, the platform fetches an Open Graph (OG) preview card. We auto-generate the OG card from:

You do not need to upload a separate OG image. If you want a custom OG image, upload one in the advanced settings (specs: 1200x630 PNG or JPEG, under 1MB).

Test before launch: Paste your campaign URL into Twitter, Facebook, and Discord and confirm the preview looks correct. Use opengraph.xyz for a quick visual check.

Optimization workflow

Before uploading, run images through:

Target file size: 500KB-1.5MB per image. Larger images load slowly on mobile and hurt LCP (Largest Contentful Paint), which affects both user experience and SEO.

For video, do not re-encode if you have a clean master. YouTube and Vimeo re-encode anyway; supplying a lower-quality source just gives them less to work with.

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This concludes Section 3. Next section: Pre-Launch Checklist covers everything to do in the week before launch day.